Combination instrument.



QSGHNEIDER.

COMBINATION INSTRUMENT. APPLICATION FILED NOV. 4. 1005.

MZILHSLF: lvllulfazn- Ow %w PATBNTED NOV, 12, 1907.

UNITED STATES PATENT OFFICE.

CARL SCHNEIDER, OF JERSEY CITY, NEW JERSEY, ASSIGNOR TO lNTERNATIONALELECTRICAL MANUFACTURING COMPANY, OF NEW YORK, N. Y., A CORPORATION OFNEW YORK.

COMBINATION INSTRUMENT.

Specification of Letters Patent.

Patented Nov. 12, 1907.

To all whom it may concern:-

Be it known that I, CARL SCHNEIDER, a citizen of the United States, andresident of Jersey City, in the county of Hudson and State of NewJersey, have invented a new and useful Improvement in CombinationInstruments, of which the following is a specification.

The object of this invention is to provide a novel combinationinstrument in which will be combined the following useful instruments;dividers, pencil compasses and pen compasses.

A further object is to provide certain detail im provements in theseveral parts whereby the delicate parts of the same may be protectedwhen the instrument is not in use.

A further object is to provide an instrument of the above character witha removable eraser arranged in a novel manner.

In the accompanying drawings, Figure 1 represents the instrument in sideelevation closed, the needle point on one branch and the pencil point onthe other branch being extended into position for use, Fig. 2 is asimilar view with the instrument open as in use, Fig. 3' is an edge viewof the same, Fig. 4 is a longitudinal central section through theinstrument in open position when used as a pen compass, Fig. 5 is afragmentary section showing the needle points extended .from bothbranches for rendering the instrument capable of use as a pair ofdividers, Fig. 6 is a similar view with the two needle points withdrawnfor the purpose of protecting them, Fig. 7 is a detail sectional viewofthe pen portion of one of the branches showing the pen points spreadapart by the sliding adjuster,

and Fig. 8 is a detail sectional view of the pencil portion of one ofthe branches showing a modified arrangement for holding the pencil inits position without causing the needle point to bite into or score thesame.

The two branches of the instrument are denoted by 1 and 2. Thesebranches are hinged together by the pivot pin 3, on which pivot pin ismounted the handle 4.

The branch 2 of the instrument is of U-shaped form in cross section andat its lower end it is provided with a needle point 5 which may be movedout beyond the end of the branch or back into the interior of the sameas desired, the device herein shown for accomplishing this resultcomprising a spring plate 6 having a pin 7 11 and 12 between which thelower portion 9 is fitted to swing. This lower portion 9 of the branchis provided with a pencil arm 13 and a pen arm 14.

The pencil arm 13 is provided with a needle point 15 and a socket 16 inwhich a pencil point 17 may be clamped in its extended or withdrawnposition by the needle point. This needle point 15 is provided with acam surface 18 for accomplishing this result. This needle point 15 islurthcr provided with a tongue 19 which is fitted to slide in anelongated slot 20 in the pencil arm 13.

The pen arm 14 is extended to form one blade of the pen and the otherblade 21 of the pen is so attached to the pen arm as to leave its pointnormally pressed against the point of the other blade.

A sliding adjuster 22 is provided with a cam 23 at one end and a handle24 at its other end. This handle 24 is formed by bending the strip whichforms the adjuster back upon itself so as to grip the inner end of thepen blade 21. As the adjuster is moved downwardly, its cam 23 willgradually force the blades 14 and 21 apart thus insuring the formationof lines of varying widths and, at the same time, providing a pen whichcan be folded between and protected by the two side plates 11 and 12 ofthe branch 1 of the instrument.

The two branches of the instrument are so arranged that the branch 1 maybe folded within the branch 2 when the instrument is out of use. Thebranch 2 is provided with a recess 25 in one of its sides for receivingthe head 26 of the pivot screw 10 which pivots the lower portion 9 ofthe branch to the upper portion.

The handle 4 of the instrument may be provided with an eraser 27.

When the instrument is folded and not in use, the needle points andpencil may be withdrawn as shown in Fig. 6 for protecting the same.

It will be seen that this combination instrument is so constructed thatthe same may be used as an ordinary pencil or as dividers, as shown inFig. 5, or as a pencil compass as shown in Fig. 1 or as a pen compass asshown in Fig. 4.

In Fig. 8 I have shown a modified form in which a presser plate 28 isinterposed between the pencil point 17 and the needle point 15 so thatthe needle point will not be caused to bite into the lead and thus tendto score or break the same. Furthermore, this presser plate 28 serves topermit a frictional grip on the lead over a more extended surface. Thispresser plate may be held in position by bending its inner end aroundthe pivot screw 10.

What I claim is:-

points having a cam surface and one of the said branches having alongitudinally adjustable pencil arranged to be clamped in its extendedor withdrawn position by the needle point having the cam surface.

2 A combination instrument having two branches hinged together, both ofthe branches having longitudinally adjustable needle points arranged tobe extended into and withdrawn from operative position, one of the saidneedle points having a cam surface and one of the branches being furtherprovided with a. longitudinally adjustable pencil, and a presser platecontrolled by the needle point having the cam surface, for clamping andreleasing the pencil.

3, A combination instrument having two branches hinged together, one ofthe said branches having a spring pressed longitudinally adjustableneedle point arranged to be ex l tended into and Withdrawn fromoperative position and the other of said branches comprising an upperportion and a lower portion pivoted to the upper portion, said lowerportion having one of its arms provided with a pen and its other armprovided with a longitudinally adjustable pencil and a longitudinallyadjustable needle point having a cam surface, for clamping the pencil inits extended or withdrawn position.

In testimony, that I claim the foregoing as my invention, I have signedmy name in presence of two witnesses,

this 2nd day of Nevember 1905.

